Open Access Research Paper Views (966) Effect of flowering on the concentrations of some plant toxins and micronutrients in the leaf of Vernonia amygdalina (Bitter leaf) Amanabo Musa Int. J. Biosci. 10(6), 69-77, June 2017. DOI: http://dx.doi.org/10.12692/ijb/10.6.69-77 Keywords: Flowering, Market maturity, Micronutrients, Plant toxins, Soil nitrogen levels, Vernonia amygdalina Details